These plants dont grow in the same way as I expect...

Yes, every light has its own effects/spectrum/efficiency. But more than the lights, your airflow can also be involved. I had a similar scenario while I was away for 2 weeks, with only 1 air intraction at the bottom of my closet (left). The plant on the left, close to the air entrance, grew very quickly with a lot of buds, whereas the plant on the right has poorly developed and gave me a light yield. Same strain, same light, same containers, same nutrients. Only the airflow was a bit different. I’d recommend to organize rotations between your plants, and make sure each one of them get a nice and cool air breathe. I’ll be around, good luck with these beauties!

Great question! Funny thing about that is I have had that happen in different grows from the past. It is either light position or height. I have a speed bud that is experiecing that as of now. Where I have more than 1 plant there is less light getting to areas to help her stretch out and get that extra light. Since I started to notice this, I rotate my plants so whatever leaves are facing the walls of my grow room one day are now facing the middle of the room the day after allowing the light to get to those areas to help her grow some more!